| Citation |
BirdLife International 2016. Myophonus caeruleus. The IUCN Red List of Threatened Species 2016: e.T22708329A94156601. https://dx.doi.org/10.2305/IUCN.UK.2016-3.RLTS.T22708329A94156601.en. Downloaded on 05 April 2020. |
Description |
JUSTIFICATION
This species has an extremely large range, and hence does not approach the thresholds for Vulnerable under the range size criterion (Extent of Occurrence <20,000 km2 combined with a declining or fluctuating range size, habitat extent/quality, or population size and a small number of locations or severe fragmentation). The population trend is not known, but the population is not believed to be decreasing sufficiently rapidly to approach the thresholds under the population trend criterion (>30% decline over ten years or three generations). The population size has not been quantified, but it is not believed to approach the thresholds for Vulnerable under the population size criterion (<10,000 mature individuals with a continuing decline estimated to be >10% in ten years or three generations, or with a specified population structure). For these reasons the species is evaluated as Least Concern.
DESCRIPTION
The global population size has not been quantified, but the species is reported to be common but thinly spread (Clement and Hathway 2000), while national population sizes have been estimated at c.100-100,000 breeding pairs in China and c.100-10,000 breeding pairs in Taiwan (Brazil 2009).
Trend Justification: The population trend is difficult to determine because of uncertainty over the impacts of habitat modification on population sizes. |
